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6930425405 = 53061452821
BaseRepresentation
bin1100111010001010…
…11110011000111101
3122212222211002101102
412131011132120331
5103143142103110
63103411022445
7333512433611
oct63505363075
918788732342
106930425405
112a37054202
121414b9aa25
13865a85c47
1449a609341
152a86745a5
hex19d15e63d

6930425405 has 8 divisors (see below), whose sum is σ = 8319245784. Its totient is φ = 5542516800.

The previous prime is 6930425393. The next prime is 6930425419. The reversal of 6930425405 is 5045240396.

It can be written as a sum of positive squares in 4 ways, for example, as 558235129 + 6372190276 = 23627^2 + 79826^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6930425405 - 28 = 6930425149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211106 + ... + 241715.

It is an arithmetic number, because the mean of its divisors is an integer number (1039905723).

Almost surely, 26930425405 is an apocalyptic number.

It is an amenable number.

6930425405 is a deficient number, since it is larger than the sum of its proper divisors (1388820379).

6930425405 is a wasteful number, since it uses less digits than its factorization.

6930425405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455887.

The product of its (nonzero) digits is 129600, while the sum is 38.

The square root of 6930425405 is about 83249.1766025346. The cubic root of 6930425405 is about 1906.5723825198.

The spelling of 6930425405 in words is "six billion, nine hundred thirty million, four hundred twenty-five thousand, four hundred five".

Divisors: 1 5 3061 15305 452821 2264105 1386085081 6930425405